Home / 13,345.55-18,416.66-7,377.09

Finding the Fourth Proportional to 13,345.55, 18,416.66 and 7,377.09

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Solution

The fourth proportional to 13,345.55, 18,416.66 and 7,377.09 is: 10,180.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.55 : 18,416.66 = 7,377.09 : x
  2. Step 2: Convert to fraction form
    13,345.55/18,416.66 = 7,377.09/x
  3. Step 3: Cross multiply
    13,345.55x = 18,416.66 × 7,377.09
  4. Step 4: Simplify right side
    13,345.55x = 135,861,229.35
  5. Step 5: Solve for x
    x = 135,861,229.35/13,345.55
  6. Step 6: Final answer
    x = 10,180.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.